Rubicon Technology, Inc. RBCN

Set alert

4.76 USD -0.34 -6.67%

At close · Oct 30

4.76 Day range 4.77

2.64 52-week range 6.70

More statistics

Chart tools

Interval

Chart is warming up

The five-day price history for RBCN has not been loaded yet. Try again in a moment.

Held by insiders 3.92%

Held by institutions 26.68%

Float held by institutions 27.77%

Institutions 24

Top institutional holders
Holder	% held	Shares	Value	Reported
Bandera Partners LLC	5.21%	128,323	192.48K	Sep 29, 2022
Renaissance Technologies, LLC	3.68%	90,671	136.01K	Sep 29, 2022
CSS LLC	1.89%	46,654	69.98K	Sep 29, 2022
Ameriprise Financial, Inc.	1.43%	35,339	53.01K	Sep 29, 2022
Citadel Advisors Llc	0.87%	21,412	32.12K	Sep 29, 2022
Blackrock Inc.	0.82%	20,137	30.20K	Sep 29, 2022

Top mutual fund holders
Holder	% held	Shares	Value	Reported
Fidelity Extended Market Index Fund	0.26%	6,312	9.47K	Nov 29, 2022
Fidelity Series Total Market Index Fund	0.08%	2,032	3.05K	Nov 29, 2022
Fidelity Total Market Index Fund	0.05%	1,323	1.98K	Nov 29, 2022
DFA U.S. Micro Cap Series	0.04%	997	1.50K	Oct 30, 2022
DFA U.S. Core Equity 2 Portfolio	0.03%	713	1.07K	Oct 30, 2022
DFA U.S. Core Equity 1 Portfolio	0.02%	568	852	Oct 30, 2022

RBCN insiders
Insider	Relation	Latest transaction	Date	Shares held
AQUILANO DON N	Director	Stock Award(Grant)	Sep 28, 2017	26,287
BROG TIMOTHY E	Chief Executive Officer	Sale	Aug 18, 2022	57,593
CALDWELL DONALD R. CPA	Director	Sale	Nov 15, 2017	0
GRAFFY MARDEL A	Chief Financial Officer	Conversion of Exercise of derivative security	Oct 31, 2017	1,099
GRAMM JEFFERSON	Director and Beneficial Owner of more than 10% of a Class of Security	Sale	Aug 18, 2022	0
MIKOLAJCZYK MICHAEL E	Director	Sale	Aug 18, 2022	31,456

Ownership